The PM8 is a supergun while the other two are not. The PM8 (as stated before) is basically a DM 9 with a few minor differences. The PM8 blows the other two markers out of the water and can be adjusted to be smooth as butter with the LPR ingeniously located below the grip frame. I also personally like the PM8 more than the DM9 and if you can get your hands on one in good condition you will be set.

just for the sake of clarity, while the pm8 might be similar to a dm9, the DM9 will still shoot better due to internal milling inside the dm9.
the pm8 is probably the best PM made, but i'd still take a dm9 over it.

Considering the fact that a dm9 can be had for probably $50 more than a pm8, theres really no reason to ever buy a pm8 anymore unless you just like the looks.

just for the sake of clarity, while the pm8 might be similar to a dm9, the DM9 will still shoot better due to internal milling inside the dm9.the pm8 is probably the best PM made, but i'd still take a dm9 over it.

Better isn't really the word, the PM8 just runs at a higher pressure, crappier shot but a little more efficiency. Granted the PM8 gets the shit end of the stick.

just for the sake of clarity, while the pm8 might be similar to a dm9, the DM9 will still shoot better due to internal milling inside the dm9.the pm8 is probably the best PM made, but i'd still take a dm9 over it.

Better isn't really the word, the PM8 just runs at a higher pressure, crappier shot but a little more efficiency. Granted the PM8 gets the shit end of the stick.